chinbone

noun

chin·​bone ˈchin-ˌbōn 

: mandible

especially : the median anterior part of the human mandible

Word History

First Known Use

before the 12th century, in the meaning defined above

Medical Definition

chinbone

noun

chin·​bone ˈchin-ˈbōn, -ˌbōn 

: jaw sense 1b

especially : the median anterior part of the bone of the human lower jaw